WO2016086611A1 - Procédé pour l'acquisition de fqdn pgw, pgw domestique et système - Google Patents

Procédé pour l'acquisition de fqdn pgw, pgw domestique et système Download PDF

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Publication number
WO2016086611A1
WO2016086611A1 PCT/CN2015/079098 CN2015079098W WO2016086611A1 WO 2016086611 A1 WO2016086611 A1 WO 2016086611A1 CN 2015079098 W CN2015079098 W CN 2015079098W WO 2016086611 A1 WO2016086611 A1 WO 2016086611A1
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Prior art keywords
pgw
home
visited
fqdn
mme
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PCT/CN2015/079098
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English (en)
Chinese (zh)
Inventor
涂小勇
叶敏雅
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中兴通讯股份有限公司
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Publication of WO2016086611A1 publication Critical patent/WO2016086611A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H04W36/00695—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using split of the control plane or user plane

Definitions

  • This document relates to the field of communication technology, and particularly relates to a method for obtaining a PGW FQDN (Fully Qualified Domain Name) when a roaming user uses a proxy data network gateway (PGW) to return to a local access, and a Home PGW. And system.
  • PGW FQDN Frully Qualified Domain Name
  • PGW proxy data network gateway
  • SAE System Architecture Evolution
  • E-RAN Evolved RAN, Evolved Radio Access Network
  • the network element included in the E-RAN is an eNodeB (Evolved NodeB), which provides radio resources for terminal access.
  • eNodeB Evolved NodeB
  • HSS Home Subscriber Server
  • HSS Home Subscriber Server
  • MME Mobility Management Entity: A control plane function entity that temporarily stores user data. It is responsible for managing and storing UE (User Equipment) contexts (such as UE/user ID, mobility management status, and user security). The parameter, etc., allocates a temporary identifier to the user, and is responsible for authenticating the user when the UE is camped in the tracking area; processing all non-access stratum messages between the MME and the UE; triggering paging at the SAE.
  • UE User Equipment
  • the SGW (Serving GW) is a user plane entity responsible for user plane data routing processing and terminating downlink data of the UE in idle state. Manage and store the SAE bearer context of the UE, such as IP bearer service parameters and network internal routing information.
  • the SGW is an anchor point of the internal user plane of the 3GPP system, and one user can only have one Serving GW at a time;
  • PGW Packet Data Network Gateway
  • PDN Packet Data Network gateway
  • the function entity generates Qos (Quality of Service) rules for controlling user data transmission based on service information, user subscription information, and operator configuration information. And billing rules.
  • Qos Quality of Service
  • the functional entity can also control the establishment and release of bearers in the access network.
  • SGSN Server GPRS Support Node, GPRS (General Packet Radio Service) Supporting Node
  • a server that temporarily stores user data, responsible for managing and storing UE related information, such as UE/user identity, mobility management. Status, user security parameters, etc., assign temporary identifiers to users, complete user security functions, complete user mobility management functions and session management functions, and process all non-access stratum messages between SGSN and UE.
  • UTRAN UMTS Terrestrial Radio Access Network
  • 3G third generation mobile communication network
  • GSM EDGE Radio Access Network A GPRS/EDGE radio access network that provides radio resources for terminal access.
  • next-generation mobile network can support users' roaming services between mobile networks in different regions and countries, and also support users to access services in different access modes, including 3GPP. Incoming and non-3GPP access.
  • the proxy PGW Proxy PGW
  • the proxy PGW can be used to implement roaming user access to the home location and perform data services.
  • the UE roams from the Public Land Mobile-Communication Network (HPLMN) to the visited site (Rosited PLMN)
  • the MME Visited MME
  • the Visited MME sends a create session request to the proxy PGW, and then the proxy PGW forwards the PGW (Home PGW) that creates the session request to the UE's home location, and then the subsequent PS (Packet Switch) is performed by the Visited MME and the Home PGW. )business.
  • PGW Packet Switch
  • the Visited MME does not obtain the FQDN of the Home PGW, and subsequently informs the HSS that the PGW FQDN of the HSS is the FQDN of the Proxy PGW, that is, the UE is not actually accessed. PGW. Then if the UE switches to non-3GPP, because the PGW is the mobility anchor of the 3GPP and the non-3GPP access system, under the non-3GPP access, the PWS FQDN that the UE actually accesses cannot be obtained from the HSS, so the handover will fail, resulting in serious Affect users' experience of the business.
  • the Visited MME does not obtain the PGW that the UE actually accesses. After the subsequent UE returns to the HPLMN, the Home MME cannot select the SGW that has the closest relationship with the PGW topology that the UE actually accesses, thereby wasting network resources.
  • the embodiment of the present invention provides a method for acquiring a PGW FQDN, a Home PGW, and a system, which can overcome the FQDN information of the PGW (Home PGW) that is actually accessed when the Proxy PGW is used in the related art, resulting in a relationship between the 3GPP and the non-3GPP.
  • the problem of mutual cut failure is a problem of mutual cut failure.
  • An embodiment of the present invention provides a method for obtaining a PGW FQDN, including:
  • the Home PGW receives the Create Session Request message from the Visited MME forwarded by the proxy PGW;
  • a create session response message is returned to the Visited MME or the Visited SGSN through the Visited SGW; the Create Session Response message carries the FQDN of the Home PGW.
  • the data service includes at least one of the following: the UE requests the Visited MME to initiate the PDN connection establishment process; the UE initiates the attach procedure under the Long Term Evolution LTE; the UE activates the process for the first time under GERAN or UTRAN; and the UE returns to the HPLMN process .
  • An embodiment of the present invention further provides a Home PGW for acquiring a PGW FQDN, including:
  • a receiving module configured to: when the UE accesses the home location through the proxy PGW and performs data service, the receiving proxy PGW forwards the create session request message from the Visited MME;
  • the sending module is configured to return a create session response message to the Visited MME or the Visited SGSN through the Visited SGW; the create session response message carries the FQDN of the Home PGW.
  • the embodiment of the invention further provides a method for obtaining a fully qualified domain name FQDN of a packet data network gateway PGW, including:
  • the home PGW moves to the roaming mobile management entity Visited MME or the roaming place.
  • the serving general packet radio service GPRS support node Visited SGSN returns a create session response message; the create session response message carries the FQDN of the Home PGW;
  • the Visited MME or Visited SGSN saves the FQDN of the Home PGW in the Create Session Response message.
  • the method before the home PGW receives the create session request message, the method further includes:
  • the Visited MME or the Visited SGSN sends a create session request message to the proxy PGW through the Visited SGW, and the proxy PGW requests the create session The message is forwarded to the Home PGW.
  • the method further includes:
  • the Visited MME or the Visited SGSN sends a request message to the home subscriber server HSS, and notifies the HSS of the FQDN association relationship between the access point name APN and the PGW that the UE actually accesses;
  • the FQDN of the PGW is the FQDN of the Home PGW carried by the Home PGW in the Create Session Response message.
  • the method further includes:
  • the HSS When the UE moves to non-3GPP, the HSS provides the APN and PGW FQDN information of the activated PDN connection to the non-3GPP system, and the APN and PGW FQDN are the APN and PGW FQDN notified to the HSS by the Visited MME or the Visited SGSN. .
  • the data service includes at least one of the following: the UE requests the Visited MME to initiate a PDN connection setup procedure; the UE initiates the attach procedure under LTE; the UE activates the procedure for the first time under GERAN or UTRAN; and the UE returns to the HPLMN procedure.
  • the method further includes:
  • the Visited MME When the UE returns to the HPLMN, when the Visited MME sends a message to the Home MME, it carries the FQDN of the Home PGW;
  • the Home MME selects the Home SGW closest to the Home PGW topology according to the FQDN of the Home PGW.
  • the embodiment of the present invention further provides a system for acquiring a PGW FQDN, including: a Visited MME or a Visited SGSN, and a Home PGW; wherein:
  • the Home PGW is configured to: when the user equipment UE accesses the home location and performs data service from the roaming place through the proxy PGW, after receiving the create session request message, return a create session response message to the Visited MME or the Visited SGSN.
  • the create session response message carries the FQDN of the Home PGW;
  • the Visited MME or Visited SGSN is set to save the FQDN of the Home PGW in the Create Session Response message.
  • the Visited MME or the Visited SGSN is further configured to: when the UE accesses the home location through the proxy PGW and performs data service, send a create session request message to the proxy PGW by using the Visited SGW, by the proxy The PGW forwards the create session request message to the Home PGW of the UE;
  • the Home PGW is further configured to, after receiving the Create Session Request message, return a Create Session Response message to the Visited MME or the Visited SGSN through the Visited SGW.
  • the system further includes an HSS;
  • the Visited MME or the Visited SGSN is further configured to: when the UE supports the handover to the non-3GPP access, send a request message to the HSS, and notify the HSS of the FQDN association relationship between the APN and the PGW that the UE actually accesses; the PGW The FQDN is the FQDN of the Home PGW carried by the Home PGW in the Create Session Response message.
  • the HSS is configured to provide the non-3GPP system with the APN and PGW FQDN information of the activated PDN connection when the UE moves to the non-3GPP, where the APN and the PGW FQDN are notified by the Visited MME or the Visited SGSN. APS and PGW FQDN for HSS.
  • the data service includes at least one of the following: the UE requests initiation from the Visited MME PDN connection establishment process; UE initiates attach procedure under LTE; UE activates process for the first time under GERAN or UTRAN; UE returns to HPLMN process.
  • the system further includes: a Home MME;
  • the Visited MME is further configured to: when the UE returns to the HPLMN, send a message to the Home MME, carrying the FQDN of the Home PGW;
  • the Home MME is configured to select a Home SGW that is closest to the Home PGW topology according to the FQDN of the Home PGW.
  • the method for acquiring the PGW FQDN, the home PGW, and the system which are provided by the embodiment of the present invention, overcome the problem that the MME cannot obtain the FQDN information of the PGW (Home PGW) actually accessed when the Proxy PGW is used in the related art, in the roaming user
  • the FQDN of the Home PGW that the UE actually accesses is obtained, so that when the proxy PGW is used, the handover between the 3GPP and the non-3GPP can also be supported, thereby improving the user experience.
  • the Home MME can also select the SGW that has the closest PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • FIG. 1 is a schematic diagram of a SAE architecture in the related art
  • FIG. 2 is a schematic diagram of a process of implementing a roaming user access attribution by using a Proxy PGW technology in the related art
  • FIG. 3a is a schematic flowchart of an embodiment of a method for obtaining a PGW FQDN
  • FIG. 3b is a schematic flowchart of another embodiment of a method for obtaining a PGW FQDN
  • FIG. 4 is a schematic flow chart of an embodiment of a PDN connection establishment process requested by a UE when a proxy Proxy PGW is used;
  • FIG. 5 is a schematic flowchart of an embodiment of a process of attaching a UE to a LTE (Long Term Evolution) process when a Proxy PGW is used;
  • LTE Long Term Evolution
  • Figure 6 is a first activation process of the UE under GERAN/UTRAN when using the Proxy PGW. Schematic diagram of an embodiment
  • FIG. 7 is a schematic flow chart of an embodiment of a UE returning to the HPLMN process when the Proxy PGW is used;
  • FIG. 8 is a schematic flow chart of another embodiment of a method for obtaining a PGW FQDN
  • FIG. 9 is a schematic diagram of a functional module of an embodiment of a Home PGW that acquires a PGW FQDN.
  • This paper relates to the field of packet domain evolution domain in mobile communication system, and relates to a method and system for acquiring the FQDN of the Home PGW that the UE actually accesses when the roaming user uses the proxy PGW to return to the terrestrial access, so that the 3GPP can also be supported when using the proxy PGW. Switching between non-3GPP.
  • the solution of the embodiment of the present invention is mainly: when the UE accesses the home location through the proxy PGW and performs the data service, the Visited MME sends a create session request message to the proxy PGW through the Visited SGW, where the proxy PGW The Create Session Request message is forwarded to the Home PGW of the UE. After receiving the Create Session Request message, the Home PGW returns a Create Session Response message to the Visited MME or the Visited SGSN through the Visited SGW. The Create Session Response message carries the Home PGW. FQDN; The Visited MME or Visited SGSN saves the FQDN of the Home PGW in the Create Session Response message. Therefore, when the proxy PGW is used, the MME can obtain the FQDN information of the PGW (Home PGW) actually accessed, and support the handover between the 3GPP and the non-3GPP to improve the user experience.
  • FIG. 2 is a schematic flowchart of a method for implementing a roaming user to access a home location and performing a PS service by using a proxy PGW technology in the related art. As shown in FIG. 2, the method includes the following steps:
  • Step 201 The roaming user initiates a PDN connection establishment to the MME (Visited MME) of the roaming place;
  • Step 202 The Visited MME initiates a DNS (Domain Name System) resolution process, and parses the control plane address of the Proxy PGW.
  • DNS Domain Name System
  • Step 203 The DNS server returns a control plane address and a FQDN (Fully Qualified Domain Name) of the Proxy PGW to the Visited MME.
  • FQDN Frully Qualified Domain Name
  • Step 204 The Visited MME sends a Create Session Request message to the Visited SGW, carrying the control plane address of the Proxy PGW.
  • Step 205 The Visited SGW sends a create session request message to the Proxy PGW.
  • Step 206 After receiving the Create Session Request message, the Proxy PGW parses the packet to obtain the user identification information, and the Proxy PGW translates the PGW (Home PGW) address of the user's subscription destination according to the information.
  • the user identification information may be an Mobile Station Integrated Services Digital Network (IMSISDN) or an International Mobile Subscriber Identification Number (IMSI).
  • IMSISDN Mobile Station Integrated Services Digital Network
  • IMSI International Mobile Subscriber Identification Number
  • Step 207 The Proxy PGW modifies the destination IP address of the IP packet in the session request message to the address of the Home PGW corresponding to the MSISDN or the IMSI, and sends the modified create session request message to the Home PGW.
  • Step 208 After receiving the Create Session Request message, the Home PGW directly returns a Create Session Response to the Visited SGW, carrying the IP address of the Home PGW, but does not carry the FQDN of the Home PGW;
  • Step 209 The Visited SGW returns a Create Session Response to the Visited MME, carrying the IP address of the Home PGW, but does not carry the FQDN of the Home PGW;
  • Step 210 The Visited MME sends a bearer setup request message to the eNodeB, where the message carries an active default EPS bearer context request message to the UE.
  • Step 211 The eNodeB sends an RRC connection reconfiguration message to the UE, where the message carries an activation default EPS bearer context request message to the UE.
  • Step 212 The UE returns an RRC connection reconfiguration complete message to the eNodeB.
  • Step 213 The eNodeB returns a bearer setup response message to the Visited MME.
  • Step 214 The UE sends an activation default EPS bearer context accept message to the Visited MME.
  • Step 215 The Visited MME sends a modify bearer request message to the Visited SGW.
  • Step 216 the Visited SGW returns to modify the bearer response to the Visited MME;
  • Step 217 if the user supports handover to non-3GPP access, Visited MME to HSS Sending a notification request, notifying the HSS of the APN (Access Point Name) and the PGW FQDN association relationship, and the PGW FQDN is the FQDN of the Proxy PGW queried according to the DNS;
  • APN Access Point Name
  • PGW FQDN is the FQDN of the Proxy PGW queried according to the DNS
  • the PGW information of the PDN connection is activated to the HSS.
  • Step 218 The HSS stores the association relationship between the APN and the PGW FQDN, and returns a notification response message to the Visited MME.
  • the Visited MME does not obtain the FQDN of the Home PGW, and the PGW FQDN of the subsequent notification is the FQDN of the Proxy PGW, that is, the PGW that is not actually accessed by the UE. Then if the UE switches to non-3GPP, because the PGW is the mobility anchor of the 3GPP and the non-3GPP access system, the PGW FQDN that the UE actually accesses cannot be obtained from the HSS under the non-3GPP access, so the handover will fail, causing serious impact. User experience with the business.
  • the Visited MME does not obtain the PGW that the UE actually accesses. After the subsequent UE returns to the HPLMN, the Home MME cannot select the SGW that is closest to the PGW topology that the UE actually accesses.
  • the solution of the embodiment of the present invention can overcome the problem that the MME cannot obtain the FQDN information of the PGW (Home PGW) actually accessed when the Proxy PGW is used in the related art, which causes the mutual handover failure between the non-3GPP and the UE to return.
  • the Home MME can also select the SGW that has the closest relationship to the PGW topology that the UE actually accesses, saving network resources.
  • an embodiment of the present invention provides a method for acquiring a PGW FQDN.
  • Step S302 After receiving the Create Session Request message, the Home PGW returns a Create Session Response message to the Visited MME or the Visited SGSN, where the Create Session Response message carries the FQDN of the Home PGW.
  • the system operating environment involves the UE, the Visited MME, the Proxy PGW, the Home PGW, the Visited SGW, the Visited SGSN, the HSS, the Home MME, and the like.
  • the solution of the embodiment of the present invention is applicable to a scenario in which a Proxy PGW is adopted.
  • the Visited MME sends a Create Session Request message to the Proxy PGW via the Visited SGW, and the Proxy PGW forwards the Create Session Request message to the Home PGW of the UE.
  • the data service includes, but is not limited to, at least one of the following: the UE requests the Visited MME to initiate a PDN connection setup procedure; the UE initiates the attach procedure under LTE; the UE activates the procedure for the first time under GERAN or UTRAN; and the UE returns to the HPLMN procedure.
  • the Home PGW After receiving the Create Session Request message, the Home PGW directly returns a Create Session Response message to the Visited SGW, and carries the FQDN of the Home PGW in the Session Response message.
  • the Visited SGW returns a Create Session Response message to the Visited MME or Visited SGSN, carrying the FQDN of the Home PGW.
  • Step S303 the Visited MME or the Visited SGSN saves the FQDN of the Home PGW in the Create Session Response message.
  • the Visited MME or Visited SGSN saves the FQDN of the Home PGW in the Create Session Response message.
  • the Visited MME or the Visited SGSN sends a request message to the HSS, and notifies the HSS of the FQDN association relationship between the APN and the PGW that the user actually accesses;
  • the FQDN of the PGW is the FQDN of the Home PGW carried by the Home PGW in the Create Session Response message.
  • the HSS when the UE moves to the non-3GPP, the HSS provides the non-3GPP system with the APN and PGW FQDN information of the activated PDN connection, and the APN and the PGW FQDN are notified to the HSS by the Visited MME or the Visited SGSN. APN and PGW FQDN.
  • the Visited MME carries the FQDN of the Home PGW when sending the message to the Home MME; the Home MME selects the Home SGW closest to the Home PGW topology according to the FQDN of the Home PGW. Therefore, after the UE returns to the HPLMN, the Home MME cannot select the SGW problem that is closest to the PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • the foregoing solution overcomes the problem that the MME cannot obtain the FQDN information of the PGW (Home PGW) actually accessed when the Proxy PGW is used in the related art, and obtains the true UE when the roaming user uses the proxy PGW to return to the local access.
  • the FQDN of the accessed Home PGW Therefore, when the proxy PGW is used, the handover between the 3GPP and the non-3GPP can also be supported, and the user experience is improved.
  • the Home MME can also select the SGW that has the closest PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • another embodiment of the present invention provides a method for acquiring a PGW FQDN, including:
  • Step S301 when the UE accesses the home location through the proxy PGW and performs the data service, the Visited MME or the Visited SGSN sends a create session request message to the proxy PGW through the Visited SGW, where the proxy PGW requests the create session. Transmitting a message to the Home PGW of the UE;
  • the system operating environment involves the UE, the Visited MME, the Proxy PGW, the Home PGW, the Visited SGW, the Visited SGSN, the HSS, the Home MME, and the like.
  • the solution of the embodiment of the present invention is applicable to a scenario in which a Proxy PGW is adopted.
  • the Visited MME sends a create session request message to the proxy PGW through the Visited SGW, and the proxy PGW forwards the create session request message to the The Home PGW of the UE.
  • the data service includes, but is not limited to, at least one of the following: the UE requests the Visited MME to initiate a PDN connection setup procedure; the UE initiates the attach procedure under LTE; the UE activates the procedure for the first time under GERAN or UTRAN; and the UE returns to the HPLMN procedure.
  • Step S302 the Home PGW returns a Create Session Response message to the Visited MME or the Visited SGSN through the Visited SGW after receiving the Create Session Request message; the Create Session Response message carries the FQDN of the Home PGW;
  • the Home PGW After receiving the Create Session Request message, the Home PGW directly returns a Create Session Response message to the Visited SGW, and carries the FQDN of the Home PGW in the Session Response message.
  • the Visited SGW returns a Create Session Response message to the Visited MME or Visited SGSN, carrying the FQDN of the Home PGW.
  • Step S303 the Visited MME or the Visited SGSN saves the FQDN of the Home PGW in the Create Session Response message.
  • the Visited MME or Visited SGSN saves the FQDN of the Home PGW in the Create Session Response message.
  • the Visited MME or the Visited SGSN sends a request message to the HSS, and notifies the HSS of the FQDN association relationship between the APN and the PGW that the user actually accesses;
  • the FQDN of the PGW is the FQDN of the Home PGW carried by the Home PGW in the Create Session Response message.
  • the HSS when the UE moves to the non-3GPP, the HSS provides the non-3GPP system with the APN and PGW FQDN information of the activated PDN connection, and the APN and the PGW FQDN are notified to the HSS by the Visited MME or the Visited SGSN. APN and PGW FQDN.
  • the Visited MME carries the FQDN of the Home PGW when sending the message to the Home MME; the Home MME selects the Home SGW closest to the Home PGW topology according to the FQDN of the Home PGW. Therefore, after the UE returns to the HPLMN, the Home MME cannot select the SGW problem that is closest to the PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • the foregoing solution overcomes the problem that the MME cannot obtain the FQDN information of the PGW (Home PGW) actually accessed when the Proxy PGW is used in the related art, and obtains the true UE when the roaming user uses the proxy PGW to return to the local access.
  • the FQDN of the Home PGW that is accessed, so that when the proxy PGW is used, the handover between the 3GPP and the non-3GPP can also be supported, thereby improving the user experience.
  • the Home MME can also select the SGW that has the closest PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • the following describes the process of requesting the originating PDN connection establishment process by the UE to the Visited MME, the UE attaching process under LTE, the first activation process of the UE under GERAN/UTRAN, and the data service processing process when the UE returns to the HPLMN process:
  • FIG. 4 it is an embodiment in a process of establishing a PDN connection requested by a UE when a Proxy PGW is used, including the following steps:
  • Step 401 The roaming user initiates a PDN connection establishment to the MME (Visited MME) of the roaming place;
  • Step 402 The Visited MME initiates resolution of a Domain Name System (DNS) Flow, parsing the control plane address of the Proxy PGW;
  • DNS Domain Name System
  • Step 403 The DNS server returns the control plane address and the FQDN of the Proxy PGW to the Visited MME.
  • Step 404 The Visited MME sends a Create Session Request message to the Visited SGW, and carries the control plane address of the Proxy PGW.
  • Step 405 The Visited SGW sends a create session request message to the Proxy PGW.
  • Step 406 After receiving the Create Session Request message, the Proxy PGW parses the packet to obtain the user identification information, and the Proxy PGW translates the PGW (Home PGW) address of the user's subscription destination according to the information.
  • the user identification information may be an Mobile Station Integrated Services Digital Network (IMSISDN) or an International Mobile Subscriber Identification Number (IMSI).
  • IMSISDN Mobile Station Integrated Services Digital Network
  • IMSI International Mobile Subscriber Identification Number
  • Step 407 The Proxy PGW modifies the destination IP address of the IP packet in the session request message to the address of the Home PGW corresponding to the MSISDN or IMSI, and sends the modified create session request message to the Home PGW.
  • Step 408 After receiving the Create Session Request message, the Home PGW directly returns a Create Session Response to the Visited SGW, carrying the IP address of the Home PGW, and also carrying the FQDN of the Home PGW;
  • Step 409 the Visited SGW returns a Create Session Response to the Visited MME, carrying the IP address of the Home PGW, and also carrying the FQDN of the Home PGW;
  • Step 410 The Visited MME saves the FQDN of the Home PGW.
  • Step 411 The Visited MME sends a bearer setup request message to the eNodeB, where the message carries an active default EPS bearer context request message to the UE.
  • Step 412 The eNodeB sends an RRC connection reconfiguration message to the UE, where the message carries an activation default EPS bearer context request message to the UE.
  • Step 413 The UE returns an RRC connection reconfiguration complete message to the eNodeB.
  • Step 414 the eNodeB returns a bearer setup response message to the Visited MME.
  • Step 415 The UE sends an activation default EPS bearer context accept message to the Visited MME.
  • Step 416 The Visited MME sends a modify bearer request message to the Visited SGW.
  • Step 417 the Visited SGW returns to modify the bearer response to the Visited MME
  • Step 418 If the user supports the handover to the non-3GPP access, the Visited MME sends a notification request to the HSS, and notifies the HSS of the APN and the PGW FQDN association relationship, and the PGW FQDN is the FQDN of the Proxy PGW queried according to the DNS;
  • the PGW information of the PDN connection is activated to the HSS.
  • the HSS stores the association relationship between the APN and the PGW FQDN, and returns a notification response message to the Visited MME.
  • an embodiment of a UE in a boot process during LTE is implemented in a Proxy PGW, including:
  • Step 501 The roaming user initiates attaching to the MME (Visited MME) of the roaming place;
  • Step 502 The Visited MME completes the authentication and security function for the UE.
  • Step 503 The Visited MME sends a location update message to the HSS to obtain user subscription information.
  • Step 504 the HSS returns a location update confirmation message to the Visited MME.
  • Step 505 The Visited MME initiates a DNS (Domain Name System) resolution process, and parses the control plane address of the Proxy PGW.
  • DNS Domain Name System
  • Step 506 the DNS server returns the control plane address and the FQDN of the Proxy PGW to the Visited MME.
  • Step 507 The Visited MME sends a Create Session Request message to the Visited SGW, carrying the control plane address of the Proxy PGW.
  • Step 508 The Visited SGW sends a create session request message to the Proxy PGW.
  • Step 509 After receiving the create session request message, the Proxy PGW parses the packet to obtain the user identifier information, and the Proxy PGW translates the PGW (Home PGW) address of the user's subscription destination according to the information.
  • the user identification information may be an Mobile Station Integrated Services Digital Network (IMSISDN) or an International Mobile Subscriber Identification Number (IMSI).
  • IMSISDN Mobile Station Integrated Services Digital Network
  • IMSI International Mobile Subscriber Identification Number
  • Step 510 The Proxy PGW modifies the destination IP address of the IP packet in the session request message to the address of the Home PGW corresponding to the MSISDN or the IMSI, and sends the modified create session request message to the Home PGW.
  • Step 511 After receiving the Create Session Request message, the Home PGW directly returns a Create Session Response to the Visited SGW, carrying the IP address of the Home PGW, and also carrying the FQDN of the Home PGW;
  • Step 512 the Visited SGW returns a Create Session Response to the Visited MME, carrying the IP address of the Home PGW, and also carrying the FQDN of the Home PGW;
  • Step 513 the Visited MME saves the FQDN of the Home PGW
  • Step 514 The Visited MME sends an initial context setup request message to the eNodeB, where the message carries an attach accept and activate default EPS bearer context request message to the UE.
  • Step 515 The eNodeB sends an RRC connection reconfiguration message to the UE, where the message carries an attach accept and activate a default EPS bearer context request message to the UE.
  • Step 516 The UE returns an RRC connection reconfiguration complete message to the eNodeB.
  • Step 517 the eNodeB returns an initial context setup response message to the Visited MME.
  • Step 518 The UE sends an Attach Complete and Activate Default EPS Bearer Context Accept message to the Visited MME.
  • Step 519 The Visited MME sends a modify bearer request message to the Visited SGW.
  • Step 520 the Visited SGW returns to modify the bearer response to the Visited MME;
  • Step 521 If the user supports the handover to the non-3GPP access, the Visited MME sends a notification request to the HSS, and notifies the HSS of the APN and the PGW FQDN association relationship, and the PGW FQDN is the FQDN of the Proxy PGW queried according to the DNS;
  • the PGW information of the PDN connection is activated to the HSS.
  • Step 522 The HSS stores the APN and PGW FQDN association relationship, and returns a notification response message to the Visited MME.
  • the embodiment is the first time that the UE is activated in the GERAN/UTRAN when the Proxy PGW is used, including:
  • Step 601 The roaming user initiates an activation PDP context request to the SGSN (Visited SGSN) of the roaming place;
  • Step 602 The Visited SGSN initiates a DNS (Domain Name System) parsing process, and parses the control plane address of the Proxy PGW.
  • DNS Domain Name System
  • Step 603 the DNS server returns the control plane address and the FQDN of the Proxy PGW to the Visited SGSN.
  • Step 604 The Visited SGSN determines to use the S4 interface to send a create session request message to the Visited SGW, and carries the control plane address of the Proxy PGW.
  • Step 605 The Visited SGW sends a create session request message to the Proxy PGW.
  • Step 606 After receiving the session creation request message, the Proxy PGW parses the message to obtain the user identification information, and the Proxy PGW translates the PGW (Home PGW) address of the user's subscription destination according to the information.
  • the user identification information may be an Mobile Station Integrated Services Digital Network (IMSISDN) or an International Mobile Subscriber Identification Number (IMSI).
  • IMSISDN Mobile Station Integrated Services Digital Network
  • IMSI International Mobile Subscriber Identification Number
  • Step 607 The Proxy PGW modifies the destination IP address of the IP packet in the session request message to the address of the Home PGW corresponding to the MSISDN or the IMSI, and sends the modified create session request message to the Home PGW.
  • Step 608 after receiving the Create Session Request message, the Home PGW directly returns a Create Session Response to the Visited SGW, carrying the IP address of the Home PGW, and also carrying the FQDN of the Home PGW;
  • Step 609 the Visited SGW returns a create session response to the Visited SGSN, carrying the IP address of the Home PGW, and also carrying the FQDN of the Home PGW;
  • Step 610 the Visited SGSN saves the FQDN of the Home PGW.
  • Step 611 if it is UTRAN access, the Visited SGSN sends an RAB Assignment Request message to the UTRAN;
  • Step 612 the UTRAN sends an RRC connection reconfiguration message to the UE.
  • Step 613 The UE returns an RRC connection reconfiguration complete message to the UTRAN.
  • Step 614 the UTRAN returns a RAB Assignment Response message to the Visited SGSN.
  • Step 615 If the PDP uses a single tunnel, the Visited SGSN sends a modify bearer request message to the Visited SGW.
  • Step 616 the Visited SGW returns a modified bearer response to the Visited SGSN
  • Step 617 If the user supports the handover to the non-3GPP access, the Visited SGSN sends a notification request to the HSS, and notifies the HSS of the APN and the PGW FQDN association relationship, and the PGW FQDN is the FQDN of the Proxy PGW queried according to the DNS;
  • the PGW information of the PDN connection is activated to the HSS.
  • Step 618 The HSS stores an association between the APN and the PGW FQDN, and returns a notification response message to the Visited SGSN.
  • Step 619 The Visited SGSN sends an activation PDP context accept message to the UE.
  • an embodiment in which the UE returns to the HPLMN process when the Proxy PGW is used includes:
  • Step 701 The roaming user completes attaching to the MME (Visited MME) of the roaming place through the Proxy PGW.
  • Step 702 The user initiates a tracking area update request message to the home MME (Home MME).
  • Step 703 The Home MME sends a context request message to the Visited MME.
  • Step 704 the Visited MME returns a context response message to the Home MME, carrying the FQDN of the Home PGW;
  • Step 705 The Home MME completes the authentication and security function for the UE.
  • Step 706 the Home MME returns a context confirmation message to the Visited MME.
  • Step 707 The Home MME initiates a DNS (Domain Name System) parsing process, and parses the control plane address of the Home SGW.
  • DNS Domain Name System
  • Step 708 the DNS server returns the control plane address and FQDN of the Home SGW to the Home MME.
  • Step 709 The Home MME selects a Home SGW that is closest to the Home PGW topology according to the FQDN of the Home PGW.
  • step 710 the tracking area update process is continued.
  • the solution of the foregoing embodiment overcomes the problem that the MME cannot obtain the FQDN information of the PGW (Home PGW) actually accessed when the Proxy PGW is used in the related art, and the roaming user uses the proxy PGW to return to the local access.
  • the FQDN of the Home PGW that the UE actually accesses is obtained, so that when the proxy PGW is used, the handover between the 3GPP and the non-3GPP can also be supported, thereby improving the user experience.
  • the Home MME can also select the SGW that has the closest PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • the embodiment of the present invention further provides a system for acquiring a PGW FQDN, including: a Sited MME, a proxy PGW, a Home PGW, a Visited SGW, a Visited SGSN, an HSS, a Home MME, and the like;
  • the Visited MME is configured to send a create session request message to the proxy PGW through the Visited SGW when the UE accesses the home location through the proxy PGW and performs data service, and the proxy PGW sends the create session request message by the proxy PGW. Forwarding to the Home PGW of the UE;
  • the Home PGW configured to return a Create Session Response message to the Visited MME or the Visited SGSN through the Visited SGW after receiving the Create Session Request message; the Create Session Response message carries the FQDN of the Home PGW;
  • the Visited MME or Visited SGSN is set to save the FQDN of the Home PGW in the Create Session Response message.
  • the Visited MME or the Visited SGSN is also set to support the non-3GPP in the UE.
  • a request message is sent to the HSS, and the FQDN association relationship between the APN and the Home PGW is notified to the HSS.
  • the HSS is configured to provide the UE with PGW information of the activated PDN connection when the UE moves to non-3GPP.
  • the Visited MME is further configured to: when the UE returns to the HPLMN, send a message to the Home MME, carrying the FQDN of the Home PGW;
  • the Home MME is configured to select a Home SGW that is closest to the Home PGW topology according to the FQDN of the Home PGW.
  • the solution of the embodiment of the present invention is applicable to a scenario in which a Proxy PGW is adopted.
  • the Visited MME sends a create session request message to the proxy PGW through the Visited SGW, and the proxy PGW forwards the create session request message to the The Home PGW of the UE.
  • the data service includes at least one of the following: the UE requests the Visited MME to initiate a PDN connection establishment process; the UE initiates an attach procedure under LTE; the UE activates the process for the first time under GERAN or UTRAN; and the UE returns to the HPLMN process.
  • the Home PGW After receiving the Create Session Request message, the Home PGW directly returns a Create Session Response message to the Visited SGW, and carries the FQDN of the Home PGW in the Session Response message.
  • the Visited SGW returns a Create Session Response message to the Visited MME or Visited SGSN, carrying the FQDN of the Home PGW.
  • the Visited MME or Visited SGSN saves the FQDN of the Home PGW in the Create Session Response message.
  • the Visited MME or the Visited SGSN sends a request message to the HSS, and notifies the HSS of the FQDN association relationship between the APN and the Home PGW.
  • the UE when the UE moves to the non-3GPP, the UE acquires the PGW information of the activated PDN connection from the HSS.
  • the Visited MME carries the FQDN of the Home PGW when sending the message to the Home MME; the Home MME is based on the Home PGW.
  • the FQDN selects the Home SGW closest to the Home PGW topology. Therefore, after the UE returns to the HPLMN, the Home MME cannot select the SGW problem that is closest to the PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • This embodiment overcomes the problem that the MME cannot obtain the FQDN information of the PGW (Home PGW) actually accessed when the Proxy PGW is used in the related art, and obtains the true UE when the roaming user uses the proxy PGW to return to the local access.
  • the Home MME can also select the SGW that has the closest PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • the UE requests the originating PDN connection establishment procedure from the UE, the UE initiates the PDN connection setup process, the UE performs the first activation process in the GERAN/UTRAN, and the UE returns to the HPLMN process, refer to the foregoing embodiment. , will not repeat them here.
  • another embodiment of the present invention provides a method for acquiring a PGW FQDN, including:
  • Step S801 when the UE accesses the home location through the proxy PGW and performs data service, the Home PGW receives the create session request message from the Visited MME forwarded by the proxy PGW.
  • Step S802 returning a Create Session Response message to the Visited MME or the Visited SGSN by using the Visited SGW; the Create Session Response message carries the FQDN of the Home PGW.
  • the solution of the embodiment of the present invention is applicable to a scenario in which a Proxy PGW is adopted.
  • the Visited MME sends a create session request message to the proxy PGW through the Visited SGW, and the proxy PGW forwards the create session request message to the The Home PGW of the UE.
  • the data service includes at least one of the following: the UE requests the Visited MME to initiate a PDN connection establishment process; the UE initiates an attach procedure under LTE; the UE activates the process for the first time under GERAN or UTRAN; and the UE returns to the HPLMN process.
  • the Home PGW After receiving the Create Session Request message, the Home PGW directly returns a Create Session Response message to the Visited SGW, and carries the FQDN of the Home PGW in the Session Response message.
  • the Visited SGW returns a Create Session Response message to the Visited MME or Visited SGSN, carrying the FQDN of the Home PGW.
  • the Visited MME or Visited SGSN saves the FQDN of the Home PGW in the Create Session Response message.
  • the Visited MME or the Visited SGSN sends a request message to the HSS, and notifies the HSS of the FQDN association relationship between the APN and the Home PGW.
  • the UE when the UE moves to the non-3GPP, the UE acquires the PGW information of the activated PDN connection from the HSS.
  • the Visited MME carries the FQDN of the Home PGW when sending the message to the Home MME; the Home MME selects the Home SGW closest to the Home PGW topology according to the FQDN of the Home PGW. Therefore, after the UE returns to the HPLMN, the Home MME cannot select the SGW problem that is closest to the PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • the foregoing solution overcomes the problem that the MME cannot obtain the FQDN information of the PGW (Home PGW) actually accessed when the Proxy PGW is used in the related art, and obtains the true UE when the roaming user uses the proxy PGW to return to the local access.
  • the FQDN of the Home PGW that is accessed, so that when the proxy PGW is used, the handover between the 3GPP and the non-3GPP can also be supported, thereby improving the user experience.
  • the Home MME can also select the SGW that has the closest PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • the UE requests the originating PDN connection establishment procedure from the UE, the UE initiates the PDN connection setup process, the UE performs the first activation process in the GERAN/UTRAN, and the UE returns to the HPLMN process, refer to the foregoing embodiment. , will not repeat them here.
  • an embodiment of the present invention provides a Home PGW for acquiring a PGW FQDN, including: a receiving module 901 and a sending module 902, where:
  • the receiving module 901 is configured to: when the UE accesses the home location through the proxy PGW and performs data service, the receiving proxy PGW forwards the create session request from the Visited MME. interest;
  • the sending module 902 is configured to: after the receiving module receives the create session request message, return a create session response message to the Visited MME or the Visited SGSN through the Visited SGW; the create session response message carries the FQDN of the Home PGW .
  • the solution of the embodiment of the present invention is applicable to a scenario in which a Proxy PGW is adopted.
  • the Visited MME sends a create session request message to the proxy PGW through the Visited SGW, and the proxy PGW forwards the create session request message to the The Home PGW of the UE.
  • the data service includes at least one of the following: the UE requests the Visited MME to initiate a PDN connection establishment process; the UE initiates an attach procedure under LTE; the UE activates the process for the first time under GERAN or UTRAN; and the UE returns to the HPLMN process.
  • the Home PGW After receiving the Create Session Request message, the Home PGW directly returns a Create Session Response message to the Visited SGW, and carries the FQDN of the Home PGW in the Session Response message.
  • the Visited SGW returns a Create Session Response message to the Visited MME or Visited SGSN, carrying the FQDN of the Home PGW.
  • the Visited MME or Visited SGSN saves the FQDN of the Home PGW in the Create Session Response message.
  • the Visited MME or the Visited SGSN sends a request message to the HSS, and notifies the HSS of the FQDN association relationship between the APN and the Home PGW.
  • the UE when the UE moves to the non-3GPP, the UE acquires the PGW information of the activated PDN connection from the HSS.
  • the Visited MME carries the FQDN of the Home PGW when sending the message to the Home MME; the Home MME selects the Home SGW closest to the Home PGW topology according to the FQDN of the Home PGW. Therefore, after the UE returns to the HPLMN, the Home MME cannot select the SGW problem that is closest to the PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • This embodiment overcomes the related art in the related art when the MME is not used when using the Proxy PGW.
  • Switching between 3GPP and non-3GPP improves user experience.
  • the Home MME can also select the SGW that has the closest PGW topology relationship that the UE actually accesses, thereby saving network resources.
  • the UE requests the originating PDN connection establishment procedure from the UE, the UE initiates the PDN connection setup process, the UE performs the first activation process in the GERAN/UTRAN, and the UE returns to the HPLMN process, refer to the foregoing embodiment. , will not repeat them here.
  • the FQDN of the Home PGW that the UE actually accesses is obtained, so that when the proxy PGW is used, the handover between the 3GPP and the non-3GPP is supported, and the user experience is improved.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne, dans des modes de réalisation, un procédé permettant d'acquérir un FQDN PGW, une PGW domestique et un système. Le procédé comprend les étapes suivantes : lorsqu'un UE accède à un site domestique à partir d'un site visité par l'intermédiaire d'une PGW mandataire et exécute un service de données et après qu'une PGW domestique reçoit un message de demande de création de session, renvoyer un message de réponse de création de session portant un FQDN de la PGW domestique à une MME visitée ou un SGSN visité, la MME visitée ou le SGSN visité mémorisant le FQDN de la PGW domestique dans le message de réponse de création de session.
PCT/CN2015/079098 2014-12-02 2015-05-15 Procédé pour l'acquisition de fqdn pgw, pgw domestique et système WO2016086611A1 (fr)

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WO2018233615A1 (fr) * 2017-06-20 2018-12-27 华为技术有限公司 Procédé et dispositif de traitement de session d'unité pdu

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130094395A1 (en) * 2011-10-17 2013-04-18 Verizon Patent And Licensing Inc. Fully qualified domain name (fqdn) record optimization for network node selection
CN103391564A (zh) * 2012-05-11 2013-11-13 华为终端有限公司 策略规则设备的选择方法及装置
CN103781189A (zh) * 2012-10-24 2014-05-07 中兴通讯股份有限公司 Andsf信息的获取方法及装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101789912B (zh) * 2009-01-23 2012-06-27 华为技术有限公司 更新分组数据网络网关信息的方法、装置及系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130094395A1 (en) * 2011-10-17 2013-04-18 Verizon Patent And Licensing Inc. Fully qualified domain name (fqdn) record optimization for network node selection
CN103391564A (zh) * 2012-05-11 2013-11-13 华为终端有限公司 策略规则设备的选择方法及装置
CN103781189A (zh) * 2012-10-24 2014-05-07 中兴通讯股份有限公司 Andsf信息的获取方法及装置

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